– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 pm Tue 06 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Tue 06 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Tue 06 Jan Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 13mm) on Tue afternoon. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 3°C on Fri morning, min -2°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryModerate rain (total 16mm), heaviest on Sat night. Freeze-thaw conditions (max 6°C on Sat morning, min 0°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||
Tue 6 | Wednesday 7 | Thursday 8 | Friday 9 | Saturday 10 | Sunday 11 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | |  |  | |  |  | |  |  | |  | |
heavy rain | mod. snow | snow shwrs | light snow | mod. snow | light snow | light snow | light snow | some clouds | some clouds | some clouds | cloudy | cloudy | heavy rain | light rain | cloudy | light rain | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | 6 | 2 | 5 | 10 | 1 | 2 | 4 | — | — | — | — | — | — | — | — | — | |
13 | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 0.2 | — | 4 | |
max °C | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 6 | 6 | 5 | 4 | 4 | 5 |
min °C | 2 | 0 | 1 | 1 | -2 | -1 | 0 | 1 | 2 | 0 | 1 | 5 | 5 | 3 | 4 | 4 | 4 |
-1 | -4 | -2 | -3 | -4 | -4 | -3 | 1 | 2 | -2 | 1 | 3 | 3 | 0 | 3 | 4 | 3 | |
900 | 650 | 600 | 600 | 600 | 350 | 600 | 700 | 950 | 1050 | 2100 | 2350 | 2400 | 1150 | 1400 | 1550 | 1500 | |
Cloud base (m) | 550 | 550 | 550 | 550 | 550 | 600 | 650 | 650 | 650 | 650 | 650 | 5000 | 4600 | 2450 | 700 | 700 | 650 |
 | — | — | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 7:56 | — | — |
 | 4:28 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:32 | — | — | 4:34 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 13mm) on Tue afternoon. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 3°C on Fri morning, min -2°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Moderate rain (total 16mm), heaviest on Sat night. Freeze-thaw conditions (max 6°C on Sat morning, min 0°C on Fri afternoon). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.